He slowly nods as Taiki asks the last part about horses, but he still looks a little confused. Not since he can't imagine it, no, there's a whole different concern here.

"We have horses. And if you mean a flying horse.. Are you talking about a pegasus?"

See, that he gets. He knows them. He sees them all the time! But the idea of Taiki being one is so weird? There's not a single part of the other that looks like a horse! Does his world have people who transform into pegasi, just like his own has people transform into dragons?